setpoints.java

java对象 创建新对象访问和设置类变量和实例变量 对象引用

import java.awt.Point;

class SetPoints {

    public static void main(String[] arguments) {
        Point location = new Point(4, 13);

        System.out.println("Starting location:");
        System.out.println("X equals " + location.x);
        System.out.println("Y equals " + location.y);

        System.out.println("\nMoving to (7, 6)");
        location.x = 7;
        location.y = 6;

        System.out.println("\nEnding location:");
        System.out.println("X equals " + location.x);
        System.out.println("Y equals " + location.y);
    }
}